Yaesu FT-897 Technical Supplement page 13

FM TX IF Adjustment
Tune the frequency to the 28 MHz band. Connect the
RF millivoltmeter to TP1033 and leave J1002 termi-
nated into a 50-Ohm dummy load.
Key the transmitter in the FM mode, and adjust T1014
alternately for maximum indication on the RF
millivoltmeter.
Connect the frequency counter to TP1033.
Key the transmitter in the FM mode without micro-
phone input. Adjust L1049 for a reading of 68.3300
MHz (±100 Hz).
Carrier Balance Adjustment
Tune the frequency to the 14 MHz band. Terminate
J1002 into a 50-Ohm dummy load and connect a spec-
trum analyzer or a RF millivoltmeter at this point.
Key the transmitter in the USB mode without micro-
phone input. Adjust VR1005 for maxi-mum carrier
suppression on the spectrum analyzer or for minimum
indication on the RF millivoltmeter.
T1018
T1026
T1028
TP1044
T1029
T1030
T1034
T1035
T1027
T1036
T1037
T1019 T1024
VHF TX BPF Adjustment
Set the frequency to 145.995 MHz. Connect the spec-
trum analyzer to J1002, which should be terminated
into a 50-Ohm dummy load.
Inject a 1 kHz tone at 1 mV level to the MIC jack.
Key the transceiver in the USB mode, and adjust
T1013, T1012, and T1011 alternately for maximum
indication on spectrum analyzer.
UHF TX BPF Adjustment
Set the frequency to 430.000 MHz. Connect the spec-
trum analyzer to J1002, which should be terminated
into a 50-Ohm dummy load.
Inject a 1 kHz tone at 1 mV level to the MIC jack.
Key the transceiver in the USB mode, and adjust
TC1004, TC1003 and TC1002 alternately for maxi-
mum indication on the spectrum analyzer.
TC1003 TC1002 TC1005
Alignment
T1008
T1010
T1005
T1009
T1006
T1004
TC1001
T1031
TP1043
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